Sharepoint错误

Question

我已经创建了一个sharepoint部件并将其部署到.net站点上。当我预览它时，sharepoint会抛出一个错误，提示“预览Web部件时出现错误”

web部件中的代码如下所示

        Dim myweb As Microsoft.SharePoint.SPWeb = Microsoft.SharePoint.WebControls.SPControl.GetContextWeb(Context)
        'Dim mylist As Microsoft.SharePoint.SPList = myweb.Lists(System.Configuration.ConfigurationSettings.AppSettings("BedList").ToString())
        Dim mylist As Microsoft.SharePoint.SPList = myweb.Lists("{80F6F320-E1F5-42EB-A2FB-895EAE00F589}")
        Dim items As Microsoft.SharePoint.SPListItemCollection = mylist.Items

        For Each item As Microsoft.SharePoint.SPListItem In items
            returnString = returnString + "<br/>" + item("Status").ToString() + " For " + item("Title").ToString + "<br/>"
        Next

有没有人知道这为什么行不通。我拿不到抛出的execption。任何帮助都是非常好的

Answer 1

首先，您应该通过在web.config中更改以下内容来使异常可见

CallStack = true

    <SafeMode MaxControls="200" CallStack="true" DirectFileDependencies="10" TotalFileDependencies="50" AllowPageLevelTrace="false">

CustomErrors =关闭

<customErrors mode="Off" />

然后，您将看到真正的异常

您也可以尝试使用以下代码获取当前网站：

Dim myweb As Microsoft.SharePoint.SPWeb = SPContext.Current.Web

当您尝试获取列表时，其他问题可能与错误的listId ou ListName有关。

希望能有所帮助

Answer 2

您可以尝试在执行myList.Items之前检查myList是否为nothing

Answer 3

还要查找标记并将其设置为

<编译debug="true"..>